BikeSeatBoost power seat, fits all bicycles

ABSTRACT

The device is used to allow any bicycle to have seat height adjustment controlled by the rider while the bicycle is in motion. Seat height is adjustable to suit the needs of the operator. The device will provide up to 6 inches of adjustment range. The lower portion of the device has 2 rails sized and space the same as on all bicycle seats. This allows the unit to be mounted to any style, size and type of seat-post/seat-clamp combination manufactured since 1960. The upper portion of the unit is designed to accept any bicycle seat manufactured today or past 50 years. A control cable exits from the bottom of the lower portion of the unit, runs along the bicycle frame up to a small control lever installed nearby the handlebar grips. This allows easy seat height adjustment while riding without having to remove hands from the handlebar. Activating the lever while body weight is lifted from the seat unlocks the seat and allows it to rise to the level desired. Once the desired seat height is achieved the lever is released, body weight added, locking the seat in the desired position. If desired, the owner may set a memory position so that the next time the seat is raised it automatically stops at this height. To lower the seat the operator removes their weight from the seat, activates the lever unlocking the seat and the while lever remains depressed adds body weight to lower the seat to the desired position. The existing seat clamp may be used to adjust the tilt of the seat or to adjust the seat post height when required to provide the best results from the device.

RELATED APPLICATIONS

This non-provisional utility patent application claims priority from U.S. provisional patent application No. 62/130,686, filing date Mar. 10, 2015, titled BIKEBOOST POWER SEAT, FITS ALL BICYCLES.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to devices which allow a bicycles seat/saddle height to be easily adjusted while the bicycle is in motion (or rest) using a handlebar mounted control such as a lever or pushbutton. The present invention mounts on any bicycles seat-post/seat-clamp combination. The owner's bicycle seat or any other bicycle seat is attached to top portion of the device.

2. Prior Art

Nearly all bicycles have a seat post whose height may be adjusted manually while the bike is parked by loosening a bolt and nut combination. Bicycles may also be equipped with a special elevating seat post which replaces the user's seat post. These posts are based on locking gas springs and are very expensive, and have low weight capacity and adjustment range.

SUMMARY

The device is a self contained bicycle seat elevating/lowering device which mounts on any bicycles existing seat post and seat clamp assembly and allows the rider to adjust seat height while riding (in motion). The owner's bicycle seat, or any bicycle seat, may be mounted to the upper portion of the unit. In addition, a special low profile seat may be mounted which hides the unit when it is in the lowered position.

BRIEF DESCRIPTION OF THE DRAWINGS

For a fuller understanding of the nature and advantages of the embodiments, as well as a preferred mode of use, reference should be made to the following detailed description read in conjunction with the accompanying drawings, in which:

FIG. 1 is an illustration of the side of a unit showing the rails for mounting to a seat post clamp on the lower portion, and on the upper portion the clamp components used to mount a bicycle seat. FIGS. 3 through 8 will not show these mounting (exterior to “U” channel” components.

FIG. 2 is an illustration of front or back of the unit showing the “U” channels, the rails and the clamp components. FIGS. 3 through 8 will not show these mounting (exterior to “U” channel” components.

FIG. 3 is an illustration of the components located within the side of the unit while in the fully lowered position.

FIG. 4 is an illustration of the bottom of the lower portion of the unit showing the locking holes and opening for the control cable to exit.

FIG. 5 is an illustration the components within the side of the unit while in a raised position.

FIG. 6 is an illustration of the left side of the unit while in a raised position showing the torsion spring, arms, upper sliding block, spacers and axles.

FIG. 7 is an illustration of the lower sliding block top view and side view with locking pin and control cable components.

FIG. 8 is an illustration of upper sliding block top view.

DETAILED DESCRIPTION OF THE INVENTION

The device has an upper channel 1 and a lower channel 2. The channels (or frames) are “U” type channels with a small lip to captivate the upper sliding block 13 and the lower sliding block 12. The lower channel 2 has welded to it two round steel rails 3. These rails mimic a bicycle seats rails in diameter and spacing. This allows the lower channel to mount to any bicycles seat-post/seat-clamp assembly. The upper channel 1 has welded to it two steel angles 4 with 3 holes in each angle. The center holes in the angle are used to captivate any bicycle seats rails 6 by inserting two screws into the captivating plate 5. The interior components include two outside arms 7. These arms 7 rotate on an axle 10 fixed to the upper and lower channels by screw or rivet. There are two interior arms 8 which are attached to an upper sliding block 13 and a lower sliding block 12, sliding blocks are located opposite each other or opposed. The sliding blocks contain slots 20 into which the inside arms 8 locate and are captivated by an axle 9 simply pushed into the sliding blocks. The inside arms 8 rotate on the axle 9 as the unit is raised and lowered. All four arms, outside 7, and inside 8, ride on a common center axle 11 and may rotate on the axle as the unit is raised and lowered. The center axle 11 is captivated by a low profile head screw 17 or rivet. The lower sliding block 12 incorporates a centered round hole 11 into which a locking pin 26 is installed. The locking pin 26 locates within one of the lower channels height positioning holes 15 unless it is raised by operator activation of the control lever 27 mounted on the bicycle handlebar.

As the device is raised, the upper channel 1 moves away from the lower channel 2. As this occurs the upper and lower sliding blocks, 12 and 13, slide inward within their respective channels and the upper channel moves backward (note that the lower sliding block 12 is the front of the unit. This backward movement mimics most bicycles seat post which backward as they are raised.

The fixed outside arms 7 utilize a spacer 19 on the axle 10 to maintain the arms position within the unit. Small spacers (not shown) may be located between the outside arms 7 and the upper and lower channel sides. The lower channel 2 outside arm spacer 19 has installed around it a torsion spring 18. The torsion spring 18 arms are located between the lower channel 2 and the center axle 11. The torsion spring arm 18 rides on a spacer 16 located between all 4 arms, and exerts pressure on this spacer 16 continually trying to raise the upper channel 1 away from the lower channel 2.

The lower sliding block 12 and hardened steel locking pin 26 and other components allow the lower sliding block to be either move freely or to lock in one of multiple positions. This feature allows the seat height to be adjusted to individual needs.

A flat spring 21 is attached to the sliding block 12. Attached to the flat spring is an arm to which is attached the control cables 24 moveable inner core wire 23. When the inner core wire 23 is pulled by the control lever 27 the flat spring 21 raises and contacts the bracket 25 attached to the locking pin 26. This action raises the pin freeing it from the captivating holes 15 in the bottom of the lower channel 2 allowing the torsion spring 18 to push upward moving the upper channel 1 away from the lower channel to provide seat height adjustment. When the control lever is released the flat spring 21 returns to its normal position, wherein it pushes the locking pin 26 downward. 

The embodiments of the invention in which an exclusive property or privilege is claimed is defined as follows:
 1. A self contained bicycle seat elevating/lowering assembly comprising a horizontal lower member or channel which attaches directly to all bicycles existing seat-post/seat-clamp types, a horizontal upper channel which is attached to the lower channel by 4 arms, a horizontal upper channel to which all existing bicycle seats may be attached, two arms which are fixed to the lower and upper channel at opposite sides and connected by a common axles, two arms which are attached to the lower and upper channel sliding low friction blocks which may move horizontally within the channels and are captivated to the upper and lower channel by ears on both sides of the channel, four arms which are connected at their midpoints by a common axle forming a “X” shape which may flatten or extend vertically, a torsion spring which provides constant pressure on the arms “X” intersection lifting the upper channel away from the lower channel, a lower channel sliding block which incorporates a vertical steel locking pin, a lower channel with multiple holes into which the locking pin may be inserted or removed to provide adjustable seat height, a flat spring which forces the locking pin into the locking holes in the channel, a Bowden type cable with handlebar mounted pull lever whose cable is attached to the flat spring which when activated pulls the locking pin up and out of the locking holes allowing the torsion spring to raise the upper channel, a flat spring which pushes the locking pin down whenever the control cable lever is released.
 2. The combination defined in claim 1, wherein the bicycle seat may be adjusted up or down while the bicycle is in motion using a handlebar mounted control lever or pushbutton located nearby the handlebar grips.
 3. The combination defined in claim 1, wherein opposed sliding blocks both move inward to move the upper channel, and bicycle seat, both upward and backward as the seat is raised.
 4. The combination defined in claim 1, wherein the devices sliding bocks may not be opposed wherein the upper channel remains in the same plain as the lower channel as the seat is raised and lowered.
 5. The combination defined in claim 1, wherein a memory plug may be inserted into the lower channel locking holes allowing the seat rise to an operator's desired height.
 6. The combination defined in claim 1, wherein body weight is removed or added in order to raise or lower the bicycle seat.
 7. The combination defined in claim 1, wherein the devices lower channel appears as a bicycle seat to the bicycles existing seat-post/seat-clamp and the upper channel acts as a seat clamp to any bicycle seat (or saddle).
 8. The combination defined in claim 1, wherein the device is designed to install on any bicycle old or new without any modification required to either the bicycle or the device.
 9. The combination defined in claim 1, wherein the device may be sold with a variety of seats (saddles) specifically designed to provide a low profile, and cover the device when the device is in the lowered position.
 10. The combination defined in claim 1, wherein the upper and lower channels may be made of a variety of suitable materials including plastic, steel, aluminum and carbon fiber.
 11. The combination defined in clam 1, wherein the devices arms may be constructed from a variety of suitable materials including plastic, steel, aluminum and carbon fiber.
 12. The combination defined in claim 1, wherein the device locks rigidly into multiple height positions within its height adjustment range.
 13. The combination defined in claim 1, wherein the device consists of an upper and lower channel connected by one pair of fixed arms and one pair of sliding arms arranged in an “X” pattern.
 14. The combination defined in claim 1, wherein the lower channel remains stationary as the upper channel raises and lowers.
 15. The combination defined in claim 1, wherein the arm axles may be replaced with other suitable fastening methods including rivets.
 16. The combination defined in claim 1, wherein the sliding blocks may be made from any low friction suitable material such as UHMW or Acetal/Delrin, or may be replaced with a rolling type assembly which may utilize wheels.
 17. The combination defined in claim 1, wherein the pin and hole locking assembly described herein may be replaced with many other suitable locking means.
 18. The combination defined in claim 1, wherein the “X” formed by the upper and lower channels may be replaced with other suitable means of separating the channels to provide bicycle seat height adjustment. 